PDF malware analysis — malicious · 1f7340135f7a472e

MALICIOUS

PDF

99.5 KB Created: 2021-03-16 00:51:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20

MD5: 06fe074d73ae70dcdaec74aaa69e090c SHA-1: 565145c5aaadffc91ed44f6e244650dc1017f0cc SHA-256: 1f7340135f7a472eca4b169ab74ad52ff0287c50c20aadf68820fee6c5471321

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains multiple embedded URLs and is flagged by heuristics as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics point towards an attack pattern designed to redirect users to malicious sites, likely for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://soxebez.ru/123?utm_term=accp+guidelines+perioperative+management+antithrombotic+therapy PDF link annotation
- http://promoocaoameericanas.com/janetivuy1a74.pdfIn PDF document text
- http://italdom.fun/1859700566327zq0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404750/normal_5fd18dce14e5d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500670/normal_6041b9d152d75.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369765/normal_5fc674e89e56b.pdfIn PDF document text
- http://titibes.iblogger.org/template_flyer_illustrator_free.pdfIn PDF document text
- http://table-wait.com/world_of_monsters_marc_mcbrideiponn.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501380/normal_5fdcdaa676a9c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4443598/normal_5fcc9668e5958.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374853/normal_6031e25e25563.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369779/normal_5ff58ff337fb1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408180/normal_5fc7371ff2b8a.pdfIn PDF document text
- http://tiktokfrance.fun/sharecropping_contract_summarylepai.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lebaxa/ledudeg.pdfIn PDF document text
- https://bf808793-8b46-4c54-8b11-319763181fa0.filesusr.com/ugd/0d018b_7c6ef4c8955b437b8e5c755f4afd74e8.pdf?index=trueIn PDF document text
- http://dinixebun.epizy.com/kujon.pdfIn PDF document text
- http://pibunowawoxi.epizy.com/bromance_full_episodes_eng_sub.pdfIn PDF document text
- https://s3.amazonaws.com/wujapu/veda_mantras_in_tamil.pdfIn PDF document text
- https://299bc67c-4c9a-44ea-852c-18f2d39dca40.filesusr.com/ugd/954c8b_69ec65979d3a407993325d909f54d9d6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/minegikukovel/space_invaders_pinball_manual.pdfIn PDF document text
- https://f07eb630-23ff-4298-a1df-d7940f1ba2dc.filesusr.com/ugd/097a5b_b063907212c0409dba5216741371c168.pdf?index=trueIn PDF document text
- http://nozafawuronixe.epizy.com/zogiwu.pdfIn PDF document text
- https://ce3a146a-d504-4efb-981c-4593fb85d965.filesusr.com/ugd/5b5da7_e6bfa0c5d42a4170beafc161585d41e4.pdf?index=trueIn PDF document text
- https://8ed62699-7d02-4439-b935-4286882ef7d4.filesusr.com/ugd/229b11_2c20eb9d189b4b9fa9d99a356ca94ef4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xufaxoferugod/ultimate_ninja_blazing_mod_apk_pearls.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00014648.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14648	5776 bytes
SHA-256: `405f20a32ca25cf65797a8257ffbe4af80a09dfb712e6501db45855ea7665a73`
`font_01_sfnt_off000159d8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x159D8	11100 bytes
SHA-256: `5382ac9e259b550d1c35e3abb63489e651b5c29b750325db252528880be4b7bf`

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